Results 81 to 90 of about 14,190 (245)
Overview of 10 inch Diameter HTPB Hybrid Motor Testing with Liquid Oxygen at Stennis Space Center [PDF]
, 2005 To further explore the operation of hybrid rocket motors and to demonstrate the performance characteristics of the motor design Lockheed Martin funded research on a series of 10 inch diameter hybrid motors that produce less than 10 klbf sea level thrust.
Kearney, Darren +2 more
core +1 more source
“Nowhere else to go”: Slow abandonment and (en)closures of long‐term care in Los Angeles
Medical Anthropology Quarterly, EarlyView.Abstract Residential long‐term care facilities, known in California as “board and care” homes, have been closing rapidly in the last decade. Proponents assert these provide vital forms of housing and care to the poor and must be saved, while critics contend they perpetuate the institutionalization of people with disabilities and should be abolished ...
Maxwell A. Hellmann
wiley +1 more source
Next generation earth-to-orbit space transportation systems: Unmanned vehicles and liquid/hybrid boosters [PDF]
The United States civil space effort when viewed from a launch vehicle perspective tends to categorize into pre-Shuttle and Shuttle eras. The pre-Shuttle era consisted of expendable launch vehicles where a broad set of capabilities were matured in a ...
Hueter, Uwe
core +1 more source
Development and Testing of a Fast-Acting, 8-Bit, Digital Throttle for Hybrid Rocket Motors
FireThe potential for throttle control of hybrid rocket systems has long been known as a potential advantage for a variety of applications. Because only a single flow path is controlled, theoretically, hybrids should be significantly easier to throttle than ...
Stephen A. Whitmore
doaj +1 more source
Studies in Ethnicity and Nationalism, EarlyView.ABSTRACT This article examines the Turkish state's Village Guard system, revived in the 1980s as part of its counterinsurgency strategy against the Kurdistan Workers Party (PKK). While often framed as a defensive militia, the Village Guards became central to the state's exceptional governance in Kurdistan, both facilitating military control and ...
Francis O'Connor +3 more
wiley +1 more source
Hybrid rocket performance [PDF]
A hybrid rocket is a system consisting of a solid fuel grain and a gaseous or liquid oxidizer. Figure 1 shows three popular hybrid propulsion cycles that are under current consideration.
Frederick, Robert A., Jr.
core +1 more source
Higher Education Quarterly, Volume 80, Issue 2, April 2026.ABSTRACT The full‐scale Russian invasion and the ongoing war have a significant impact on the Ukrainian higher education system, which is primarily related to material losses caused by damage and destruction of universities and infrastructure, decreased funding, the departure of some students and university teachers abroad, decreased research ...
Olena Brintseva
wiley +1 more source
Low Temperature Hybrid Mars Ascent Vehicle Concept Development and Planning at MSFC [PDF]
Return of samples from Mars has been a goal of NASA's for decades. The current Mars Sample Return mission concepts have a multiple launch rocket from the earth, where one mission delivers a caching rover to collect and package the Martian soil samples ...
Chaffin, Jessica +5 more
core +1 more source
Analysis of quasi-hybrid solid rocket booster concepts for advanced earth-to-orbit vehicles [PDF]
A study was conducted to assess the feasibility of quasi-hybrid solid rocket boosters for advanced Earth-to-orbit vehicles. Thermochemical calculations were conducted to determine the effect of liquid hydrogen addition, solids composition change plus ...
Andreev T. +7 more
core +2 more sources